Carbureter.



PATENTED PEB.1.1, 190s.

. GAHILL.

2 gHEI-ITS-SHBET 1.

INVENTQR R B T B Du U B R A nu APPLICATION FILED-MAB. 14. 1907.

WITNESSES W. A.;9AHILL. CARBURETER.

APPLICATION-FILED MAR. 14. 190-1.

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WITNESSES ms nonusr is UNITED STATES PATENT OFFICE.

WILLIAM A. OAI-IILL, OF SYRACUSE, NEW YORK.

CARBURETER.

Specification of Letters Patent.

Application filed March 14. 1907. Serial No. 362.265-

Patented Feb. 11,1908.

State of New York, have invented new and useful Improvements in Carbureters, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

operation, and at the same time will greatly through the lower end of the cup 6 so as ,economize in the use of gasolcne and permit; ofvco nvenient and positive regulation of the -.feed of the air and gasolene.

"Torithat end the invention consists in the ,ndvel arrangement and combination of the component parts of the carbureter as hereinafter fully described and set forth in the claims.

This invention relates to carbureters of that class comprising a casing for containing gasolene or other fluid and embodying a chamber in which the gasoline is combined with 1 air so as to produce a vapor designed to be supplied tothe cylinder of an explosive en- The chief object of the present invention to produce a carbureterof that character iuwhich the air and gasolene shall be drawn into the mixing-chamber by suction created :therein by the action of the piston in the engine-cylinder, and to provide said mixingchamber with a gasolene-sprayer rendered operative by the'suction of the gasolene into the chamber, and to associate with said sprayer a screening-device or other suitable means serving to reduce the particles of gasolene-spray to a maximum degree where by the 5 two elements will be thoroughly combined a I- 'absplutely vaporized condition and thus increase the efiiciency of an explosive-engine. -.l A furtherobject of my invention is to produce a carbureter which shall be very simple and supplied to the engine-cylinder in an infconstruction, reliable and eiiectual in its In the accompanying drawings, Figure 1 a vertical section of the'carb'ureter embodying my invention; Fig. 2 is a vertical land ZZ respectivelp Referringto the drawings 1- denotes f an upiight cylindrical casing which is promo vably thereon by means'of screws 3-3- 45 formed on the respective parts. 6 represents a ronical-shaped cup and clamped etween the aforesaid flanges- 45.

as will be hereinafter fully explained, and

a lower chamber A-- for containing a suit able quantity of gasolene, and an -upperchamber B in which the mixture of gasolene and air is effected.

of gasolene' to the chamber A...-

or reservoirmay be cutofl' if desired.

The stand-pipe 10 is dis osed at one gasolcne in the chamber a proper distance below the bottom of the conicalcupv 6. In the center of the chamber A are dis posed two concentrically arranged pipes extend from the bottom of the casing.

'to carry the pipes into the upper chamber 'B. These ipes are arranged with a space between t em and thus two air-inlets l516'-are provided, and the v0 ening 17in the lower end. of the cup or the reception of the pipes is sufficiently large to lower chamber A for the purpose shortly explained. These inlets I term main and auxiliary passages respectively.

18- denotes a s'mallupright tube extending from the bottom of the chamber A and having its upper .end portion passing through the opening 17 in the lo -m1 end of the cup 6 and terminating ii: a right angled bend l8 provided with i a longitudinal slit 19- as clearly shown vided witha top 2 which is secured re- I disposed within the casing and held inposi; tion by a flange -7 formed on .said 1cup-;

This cup. serves as a gasolene drip,

side of the center of the cham er and is of such length as to maintain the level of the 1314 which are open at both ends and divides the casing transversely so as :to form ,a

To the bottom of the casing is connected a pipe 8 which extends from; a suitable tank or reservoir (indicated at ,9)5f or-storin'g-, the gasolene. This pipe communicates with." a stand-pipe 10 extending into the j chamber A' and isp'rovided with-rthep 1 well known so-called needle-valve which may be adjusted to regulate the supplll-y; e

pipe is also provided with the usual valve 12 by which the supply from the tank- '95 afiord communication between the cup and in Figs. 1 and 2. The lower end of the tube 18 is connected to a well known needlevalve 20 suitably fastened in the chamber A and communicates with the said chamber by means of aflsmall port 2 1 in the valve as shown in Fig. 1. This valve has its stem projecting at the exterior of the casing and serves to regulate the'feed of gasolene to the chamber B in which the mixture of the two elements is efi'ected. The upper bent and slitted end of the tube l8 constitutes a sprayer for the gasolene and terminates directly over the central or main air-inlet passage .15.

It will be understood that the gasolene is drawn into the chamber A from the storing-tank or reservoir by the suction created in the casing by the piston of the engine-cylinder (not necessary to be shown). This suction obviously draws the gasolene through the tube 18 from the chamber Ainto the up er chamber B, and also draws air throug the passage 1516. The draft of the gasolene through said tube and resultant spraying action inconjunction .with the direct draft of the air through the mainor central passage 15- results in combining a greater portion of the air with the particles or molecules of gasolene proe duced, and the action of the air rushing up through the auxiliary or surrounding passage 16 reduces these particles or globules to some degree, thus completing the primary step in effecting the mixture of the two elements As a final ste in the mixture of the two elements,- provide the chamber B with a set of transverse finely perforated diaphragms or screens, preferably two screens 2223, disposed above the sprayer and arranged one over the other and a suitable distance apart. Each of these screens is preferably composed of wire-cloth of extremely fine mesh and has its margin secured between two rings 24 24- united by screws +Z525 as illustrated in Fig. 5 and the two screens are detachably fastened upon the cup 6. by means'of screws 2626 passing through apertures in the rings and entering the top of said cup as clearly shown in Fig. l. The lower screen is preferably formed flat and is provided in the center of its top with a small cone 27 also composed of wire-cloth. The upper screen I prefer to form conical and provide the top with a correspondingly shaped imperforate metal cap -28 suitably secured to the center thereof.

The suction of the mixture of air and gasolene through the screens or diaphragms constructed and arranged in the manner described, produces a thorough vaporization of the mixture, which is supplied to the usual com ression-chamber in the ex-. plosion-cyhnder of the engine through the usual pipe 29 connected to a neck 30 projecting from the center of the top The outlet-openin -31 of said neck is provided with a sultable check-valve 32 which is opened by the suction of the vapor through the pipe -29. This valve will close automatically at the end of the suctionstroke of the piston, it being understood that the communication between the pipe and Y engine-cylinder is cut off by the usual automatically closing intake-valve. To relieve the pipe 29 of any back ressure that may exist, I provide a suitab e valve 33-. In order to observe the quantity of gasolene in the chamber A to determine whether the needle-valves -1.l and 20 are properly adjusted, I provide .the casing with a lass-gage -34.

While the aforesaid wire-cloth cone .27 and conical metal cap 28 are not absolutely essential to the action of the carbureter, still at the same time it has been found by experience that they assist quite materially in the vaporization of the mixture. In case the screens become excessively moist by continued use, the drips therefrom will enter the cup 6- and pass through the opening 17' into the chamber A-..

What I claim as my invention is 1 1. In a 'carbureter, the combination of a casing provided with a liquid-containing chamber having a'suitable source of supply, and a mixing-chamber having a suitable outlet-opening, a central vertical air-inletpipe extending from the bottom of the casing into the mixing-chamber, a sprayer aifording' communication between the liquid-chamber and mixing-chamber and arranged above the air-inlet pipe, a perforated diaphragm disposed in the mixing-chamber, and a suction-pipe connected to the mixing-chamber at the outlet-opening for the purpose set forth.

2. In a carbureter, the combination of a casing provided with a liquid-containing chamber having a suitable source of supply,

and'a mixing-chamber disposed above the liquid-containing chamber and having a suitable outlet-opening, a central vertical air-inlet passage extending from the bottom of the casing through the liquid-containing chamber and into the mixing-chamber, a passage for feeding the liquid from the lower chamber-into the-mixing-chamber, a sprayer at the upper end of the latter passage and disposed at an angle to the air-inlet passage, a drip-cup supported in the-bottom of the mixing-chamber and communicating with the liquid-containing chamber, and a screen mounted on the drip-cup and disposed above the air-inlet passage and sprayer as set forth. I

3. In a carburetor, the. combination of a casing provided with a liquid-containing in the bottom of the mixing-chamber, an

chamber and a mixing-chamber, adrip-cup air-inlet ipe extending through the bottom of the rip-cup into the mixing-chamber, means for feeding the liquid into the mixingchamber including a sprayer disposed trans- 5 versely above the air-inlet pipe, a series of screens arranged one over another within the mixing-chamber and. supported upon the drip-cup, and a-suction-pipe connected to the said mixing-chamber-above the screen for the purpose set forth.

4. In-a carbureter, the combination of a mixing-chamber provided with an air-inlet pipe and a gasolene feed-pipe disposed at one side of the air-inlet pipe and parallel thereto, means for spraying thegasolene across the inner end of said air-inlet pipe, and a suctionpipe connected to said chamber as and for the purpose set forth.

5. In a carbureter, the combination of a casing, a drip cup dividing the casing into a-lower liquid-containing-chamber and an upper mixing-chamber, a passage for supplying the mixin -chamber with air, means for spraying the iquid above the air-passage, a screeningdev1ce disposedabove the airsupplying means and liquid-spraying means, andsupported on the drip-cup and suction means communicating with the mixingchamber above the screening-device as and for the purpose set forth.

6. In a carbureter, the combination of a casing, a drip-cup dividing the casing into a lower gasolene-containing chamber andan upper mixing-chamber, a central vertical air-inlet pipe extending from the bottom of the casing through the bottom of the dripcup, a gasolene-feed communicating with said mixing-chamber and provided with a sprayer disposed above the air-inlet pipe, a conical screen disposed in the mixing-chamber above the air-inlet pipe and gasolenesprayer and supported on the drip-cup, and a suction-pipe connected to the said Inixing-,,

chamber above the screen as and for the pur-.

r '45 pdse set forth,

1,7 In a carbureter, the combination of an upri ht casing having a gasolene-containing chamber provided with'a suitable source of supply, and a mixing-chamber disposed above the gasolene-chamber, an air-inletpipe'extendi'ng from the bottom of the easing into themixing-chamber, a tube for feeding the gasolene from the containing-chamber to the mixing-chamber and provided with a sprayer arranged directly-over the air-inletpipe, a valve for regulating the supply of gasolene to the containing-chamber, a valve for regulating the feed of gasolene from the,

latter chamber to the, mixing-chamber, a flat-screen disposedin the mixing-chamber above the air-inlet pipe and sprayer, a conical-screen arranged above the flatscreen, ar 1 d. a suction-pipe connected to thetop of the mixingechamber as and for the purpose set forth.

- charge end with spraying {means disposed l 8. In a carbureter, the combination of a casing, a drip-cup dividing the casing into a lower gasolene-containing chamber and an upper mixing-chamber, a gasolene supply-' pipe connected to the lower chamber, a main I air-passage and an auxiliary air-passage extending from the bottom. of the casing through the drip-cup and into the mixingchamber, means for feeding the gasolene from the lower chamber to the mixing-chamber and including a transversely arranged sprayer disposed above-the main air-passage, and suction means operative for drawing the air and gasolene into said mixing-chamber 'as set forth.

9. In a carbureter, the combination of a casing, a drip-cup dividing the casing into a lower gasolene-containing chamber and an upper mixing-chamber, means supplying the gasolene to said lower'chamber, two concen- 35 trically arranged pipes extending centrally and vertically from the bottom of the casing through the bottom of the drip cup and into the mixing-chamber, the inner pipe forming a main-air-inlet and the space be-v tween the twopipesconstituting anauxiliary.v air-inlet, a gasolene feed-tube extending through the bottom of the drip-cup intolthe mixing-c11amber'and provided at its disover the main air-inlet, and"a suction-pipe connected to the upper portion of the mixing-chamber as and for the purpose set forth. I

10. In a carburete'r, the combination of a casing, a drip-cup dividing the casing'lnto a lower gasolene-containing chamber and an. upper mixing-chamber, a stand-pipe disposed in .the gasolene-chamber and open-through nected to the lower end of said stand-p1pe',-.a vertical air-pipe passing through the bottom of the casing and drip-cup and extending into the mixing-chamber, a tube for feeding the gasolene from the lower chamber to the. 'mix-' ing-chamber andprovided at its discharge end with a sprayer disposed transversely-in relation to= the air-pipe, and a suction-pipe connected to the top of the mixing-chamber as and for the purpose'set forth.

11. In a carbureter, the combination of a casing having a lower gasolene containingchamber and an upper mixing-chamber, a supply-pipe connected to the gasolene-chamber, a valve for regulating the supply, an air passage extending from the exterior of the casing into the mixing-chamber, means for feeding the gasolene from the lower chamber to the mixing chamber and including a sprayer, a valve for regulating the feed of gasolene, a screen disposed in the mixingchamber. above the sprayer and airpassage,'f the upper portion of themixing-chambe'r be ing provided with an outlet openinga subtion-pipe communicating with the ,outlet c139 the bottom of the casing, a supply-pipecom 105' opening, and an automatically closing valve in said opening as set forth and shown.

12. A carbureter comprising a gasolenechamber provided with a stand-pipe, a suitable source of-sup ply connected to said standi e, a mixing-chamber having a vertical air- 1n et pipe extending through the gasolenechamber, a vertical. pipe for feeding the gasolene into the mixing-chamber, a sprayer at the upper end of said feed-pipe and disposed at right angles to the air-inlet pipe, a drip-cup at the bottom of the mixing-chamber and communicating with the gasolenechamber, and a suction-pipe connected to the said mixing-chamber and provided with an automatic check-valve as and for the purpose set forth.

13. A carbureter comprising a gasolenechamber, a mixing-chamber having an airinlet, means for feeding the gasolene to the mixing-chamber, a drip-cup formed with a flange by which it is secured within the mixing-chamber and provided with an opening by which it communicates with the gasolenechamber, a screen disposed in the mixingchamber above the air-inlet and gasolenefeeding means and supported on the drip-cup, and-a suction-pipe connected directly to the mixing-chamber above the screen as and for the purpose set forth.

14.'A carbureter comprising a gasolenechamber, a mixing-chamber having a dripcup communicating with the gasolene-chamber, a pipe for supplying air to the mixingchamber, means for feeding the gasolene to the mixing-chamber, a screen supported on top of the drip-cup and arranged above the air-inlet and gasolene-feeding means, and a suction-pipe connected to the top of the mix- 40 ing-chamber as and for the purpose set forth.

1.5. A carbureter comprising a gasolene chamber, a mixing-chamber having a dripcup at its bottom communicating with the gasolene-chamber, a pipe extending through I the bottom of the drip-cup for supplying air to the mixing-chamber, means for feeding the gasolene to the mixing-chamber and including a sprayer disposed at the air-inlet pipe, a conical screen supported on top of the 0 drip-cup, and a suction-pipe communicating with the mixing-chamber above the screen as set forth.

16. In a carbureter, the combination of an upright casing provided with a removable cup dividing the case into a lower gasolenecontainin -chamber and an upper mixingchamber, a pipe extending centrally and upwardly from the bottom of the casing through the bottom of the cup for supplying air to the mixing-chamber, a tube extending from the gasolene-chamber up through the cup for feeding gasolene to the mixing-chamher, and provided at its upper end with a sprayer disposed over the adjacent end of the air-pipe, a flat-screen and a conical screen disposed one above the other and supported on top of the cup, and a suction-pipe connected to the-mixing-chamber above the screens as and for the purpose set forth.

17. In a carbureter, the combination with an upright cylindrical casing, of a coneshaped drip-cup dividing the ease into a lower gasolene-containing-chamber and an upper mixing-chamber and provided with an opening affording a communication between the mixing-chamber and gasolene-chamber, two vertical concentrically arranged pipes extending from the bottom of the casing through the opening in the cup and formlng an inner main air-p assage and an outer auxiliary air-passage, a gasolene feed-tube extending from the lower portion of the gasolenechamber through the said opening and provided with spraying-means over the main air-passage, a plurality of screens mounted on top of the drip-cup and arranged one above the other, the top of the mixing-chamber being provided with an outlet-opening, a check-valve in said opening, and a suctionpipe communication with said opening as and for the purpose set forth.

18. In a carbureter, the combination of an upright cylindrical case formed with an exterior circumferential flange, and having a removable top formed with a corresponding flange, a cup disposed within the casing and formed at its upper portion with a flange secured movably between the flanges of the casing and top, said cup dividing the casing into a lower gasolene-chamber and an upper mixing-chamber, and air-passage extending from the exterior of the chamber to the mix--.

ing-chamber, means for feeding the gasolene to the said mixing-chamber, a screen secured detachably to the top of the cup, the top of the casing being formed with an outlet-opening, a check-valve in the opening, and a suction-pipe communicating with said opening as and for the purpose set forth.

19. In carbureter, the combination with the mixing-chamber having suitable airand gasolene-inlets, and a suction-pipe connected to the mixing-chamber, of a conical screen secured removably in the said mixing-chamber and provided with a sheet-metal cap as set forth and shown.

20. In a carbureter, the combination of a casing divided into a gasolene-containing chamber and a mixing-chamber, a suitable air-inlet passage extending through the gasolene-chainber and into the mixing-chamber, and a feed-tube extending from the bottom of the gasolene-chamber into the mixingchamber, the discharge-end of said tube be ing provided with,. a slit disposed above the air-inletpassj -rge and serving as a sprayer as set forth and shown.

21. In a carbureter, the combination of a gasolene-containing chamber having a. suitable source of supply, a mixing-chamber arranged above the gasolene-chamber, a a central longitudinal slit servin as a sprayer vertically disposed air-inlet pipe extending as and for the purpose describe into the bottom of the mixing-chamber and I a vertically disposed tube for feeding the WILLIAM" 5 gasolene to the mixing-chamber, said feed- Witnesses: tube havingits upper end portion bent hori- J. J. LAAss,

zontally over the air-inlet and provided with L. KAISER. A t 

